Stability and storage of mph,eph

[obsty]

Hi,

how long is the stability of methylphenidate, ethylphenidate and 3,4-CTMP (not the hydrochloride form)?. How long can you store them in UV blocking vakuum moisture barrier bags(at 20°C)? The methyl group is not so stable but I heard that you can have 95% after 12 years if you store it under 40°C.

 

[crazycatman]

I forgot some EPH dissolved in water for two to three weeks. It wasn't in direct sunlight but we had a heat wave with temps around 40°C. Was still fine after.